digitalWriteNibble()

[Digital I/O]

void digitalWriteNibble(unsigned short a, unsigned short b, unsigned short c, unsigned short d, unsigned char value);

Description

Writes a 4-bit value (nibble) to the specified Custom Element pins.

If the pin has been configured as an output with pinMode(), its voltage will be set to the corresponding value, following the family electronic standards configured with logicFamily().

If the pins are configured as an input, the function will have no effect.

Parameters

a: the pin of the most significant bit of the nibble (MSB).

b: the pin of the second most significant bit of the nibble.

c: the pin of the second least significant bit of the nibble.

d: the pin of the least significant bit of the nibble (LSB).

value: HIGH or LOW

Returns

Nothing.

Example Code

The code writes the value of a nibble to the Custom Element pins 3, 4, 5, and 6.

void setup() {
    pinLabel(3, "OUT");   // sets the pin 3 label to "OUT"  
    pinMode(3, OUTPUT);   // sets the digital pin 3 as output

    pinLabel(4, "OUT");   // sets the pin 4 label to "OUT"  
    pinMode(4, OUTPUT);   // sets the digital pin 4 as output

    pinLabel(5, "OUT");   // sets the pin 5 label to "OUT"  
    pinMode(5, OUTPUT);   // sets the digital pin 5 as output

    pinLabel(6, "OUT");   // sets the pin 6 label to "OUT"  
    pinMode(6, OUTPUT);   // sets the digital pin 6 as output
}

void loop() {
    digitalWriteNibble(3, 4, 5, 6, 10);   // writes the value 0b1010 to the pins 3, 4, 5, and 6
}

Notes and Warnings

All the pins are set as inputs by default, so they must be configured as outputs with pinMode() before using digitalWriteNibble().